Rotary engine.



R. LUNDQUIST` ROTARY ENGINE.

AAAAAAAAAAAAAAAAA PB. 9, 1910. H

965,640, v `Patented July 26,1910.

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A TTOR/V E YS R. LUNDQUIST. ROTARY ENGINE.

Arrmouxon mm1) un. 9, 1910.

965,640. PatenaJuly 26,1910.

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WITNESSES:

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RGTARY ENGINE.

Specification of Tie-tters Patent.

Patented July 26, 1919.

Application iled'ApriI 9, 1910. Serial No. 554,390.

To all whom it may concern:

Be it known that I, RICHARD LUNDQUIST, a subject of the King of Sweden, and a resi dent of Laguna de Terminos, Mexico, have invented a new and Improved Rotary Engine, of which the following is a full, clear, and exact description.

rlhis invention relates to a new and iinproved engine of the rotary type, and more particularly to that type of engine disclosed in my prior Patent, No. 883,034, granted March 24, 1908.

An object of this invention is to provide a device which will be simple in construction, inexpensive to manufacture, strong, durable, and efficient in its operation.

A further object of this invention is to provide a rotary engine with a rotor having a plurality of pocketscontaining buckets extending in opposite directions, whereby said rotor may be propelled in either direction.

These and further objects, together with the construction and combination ofparts, will be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had to the accompany ing drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in both views, and in which Figure 1 is a two-plane vertical section, showing opposite phases or sections of the engine; and Fig. 2 is a view in elevation, partly in section on the line 22 of Fig. 1.

Referring more particularly to the sepa-` rate parts of the device, 1 indicates an engine casing, which is preferably cylindrical in form and is provided with end plates 2 and 3. Rotatably journaled in bearings in the end plates 2 and 3, there is provided a power shaft 4, to which secured in any well known manner a motive member or rotor 5. This rotor is divided up into sections in any suitable manner. In each of these sections, there are provided a plurality of pockets 6 and 7, the walls ofwhich are arcuate in form, the bottoni wall 8 offering a convex surface, and the end wall 9, a concave surface. These pockets 6 and 7, starting from the periphery, increase in depth in a diverging manner, so as to be disposed adjacent the end walls 9. The pockets 6 face in the opposite direction from the pockets 7. 1n the drawings, the pockets 6 are shown arranged in peripheral series in alternate relation with series of the pockets 7. However, if desired, the series of pockets facingv in one direction may be arranged side by side, and the series of pockets facing in the opposite direction may also be arranged side by side. The purpose of arranging these pockets to extend in opposite directions is so that one set of pockets may be utilized to rotate the rotor 5 in one direction, and the other'set of pockets to rotate the rotor 5 in the opposite direction. For the purpose of more fully absorbing the steam or other motive fluid which is let into the easing 1 in a manner to be described, there are provided in each of these pockets a plurality of buckets 10 and 11, preferably two in number, and secured to the rotor 5 in any well known manner. These buckets do not extend the whole width of the pockets 6 and 7, but are spaced apart from the sides thereof, so as to permit the motive iiuid to escape by them and exert the greater part of its force against the end walls 9. In order that the buckets 11 may be strengthened to bear the strain put thereon by the motive fluid, there are provided peripherally-extending braces 12, which, further, serve the purpose of Vdividing up the steam in the pockets. lntermediatethe adjacent pockets 6- and the adjacent pockets 7, there are provided auxiliaryrpockets 13 and 14, which, further, serve to augment the force exerted on the rotor 5 by the motive fluid.

Arranged horizontally on diainetrically opposite sides of the casing 1, there are pro vided steam chests 15, 16, 17 and 18, which are connected by means of pipes 19, 20, 21 and 22, (shown dotted in Fig. 1) to a cornmon supply pipe 23. These pipes 19 to 22 meet in a common connection 24, and the flow of motive fluid therethrough is controlled by a valve 25, so that the steam or4 other motive fluid can be shunted to flow through the pipes 2O and 21, and thus into the steam chambers 16 and 17, thereby rotating the rotor 5 in a rightdianded direction, looking at it from the front of Fig. 1; or the pipes 19 and 22 can be connected with the common supply pipe 23, thereby adinitting the motive fluid to the chests 15 and 18, thus rotating the rotor in the opposite direction. The steam chests 15 to 18 are each connected to the interior of the casing 1 by jet passages 26, 27, 28 and 29, of which, in the case of the steam chests 15 and 18, there is one for each of the series of pockets 6, and in the case of the steam chests 16 and 17, there is one for each of the series of pockets 7. It will be noted that these jet passages 26 to 29 are narrow at their junction with the steam chests, or at their inlets, and gradually expand and terminate in enlarged pockets 30. This is done in order to permit the steam to expand somewhat before striking the buckets on the rotor, thereby increasing the force of the steam, and the Walls of these pockets, further, form abutments to absorb the reaction of the steam, and thereby augment its force on thel rotor 5. Further reaction pockets 31 and 32 are provided in the casing 1, to augment the force exerted on the rotor by the motive Huid in either direction.

Adjacent the head and base of the casing there are provided exhaust passages 33 and 34;, of which there is one for each of the peripheral pockets 6 and 7 on diametrically opposite sides of the rotor 5.

The operation of the device will be readily understood when taken in connection with the above description. The flow of motive fluid is controlled to the chests 15 to 18 by means of the valve 25. If it is desired to rotate the rotor 5 in a right-handed direction, the valve 25 is thrown so as to connect the pipes 20 and 21 with the common supply pipe 23. This permits the steam to pass into the steam chests 16 and 17. The steam or other motive fluid rushes through the expanding et passages or nozzles, and being directed against the buckets in the pockets 7, rotates the rotor in a right-handed direction. Inasmuch as the buckets do not extend the full width of the pockets, the majority of the force of the motive fluidis absorbed by the end walls of the pockets. As the pockets, filled with the motive fluid, approach the exhaust passages 33 and 34, the fluid naturally exhausts through these passages and thereby relieves these pockets of the expended steam, and renders them in a condition ready to receive a fresh impulse' from the motive fluid on the opposite side of the casing 1. This action is continuous, each pocket receiving two impulses and exhausting the steam twice during a single revolution. If it is desired to reverse the engine, it is merely necessary to throw the valve 25 so as to connect the pipes 19 and 22, and thus the steam chests 15 and 18, with the common supply pipe 23, when the buckets in tllle pockets'G Will have been brought into a ay. l lVhile I have shown one embodiment of my invention, I do not wish to be limited to the exact structure thereof, but desire to be protected in various changes, modifications and alterations which I may make Within the scope of the appended claims.

Having thus described my invention, I

I claim as new and desire to secure by Letters Patentzl. A rotary engine having a rotary member provided with a plurality of separate pocket-s disposed about the periphery thereof and a plurality of buckets Within each pocket and an engine casing inclosing said rotary member and having an outlet port and a pocket adjacent said port and from which motive fluid may expand against the buckets.

2. A rotary engine having a rotor provided with a plurality of pockets in the periphery thereof, each pocket being substantially triangular in form and having two inwardly-extending intersecting walls, a plurality of buckets within each pocket and a casing having an inlet port delivering substantially tangentially and a pocket communicating with said port and of substantially the same form as the pocket of the rotor `but reversely positioned in respect thereto.

3. In a rotary engine, the combination with a rotor having a plurality of peripherally-arranged pockets therein, each of said pockets expanding gradually from the surface toward the interior, of a plurality of buckets in each of said pockets, and a casing for said rotor, said casing having a motive fluid inlet and a motive fluid outlet.

4. In a rotary engine, the combination with a rotor having a plurality of pockets arranged in series, the pockets in some of the series extending in opposite directions to the pockets in other series, cach of said series having one or more buckets therein, of a casing for said rotor having a motive fluid inlet and a motive fluid outlet.

5. In a rotary engine, the combination with a rotor having a plurality of pockets arranged in series, the pockets in sonic of the series extending in opposite directions to the pockets in other series, each of said pockets having one or more buckets therein, reinforcing braces for some of said buckets, and a casing for said rotor having a motive fluid inlet and a motive fluid outlet.

G. In a rotary engine, the combination with a rotor having a plurality of pockets peripherally-arranged thereon, each of said pockets having a convex lower wall and a concave end wall, of one or more buckets disposed in each of said pockets and spaced apart from the side walls thereof, and a casing for said rotor having a motive fluid inlet and a motive fluid outlet.

7. In a rotary engine, the combination with a rotor having a plurality of pockets peripherally-arranged thereon, each of said pockets having a convex lower wall and a concave end wall, of one or more buckets disposed in each of said pockets, and a casing for said rotor having a motive fluid inlet and a motive fluid outlet.

8. In a rotary engine, the combination With a rotor having a series of peripherally arranged pockets extending in one direct-ion and a series of peripherally arranged pockets extending in the opposite direction, of one or more buckets in each of said pockets, and a casing for said rotor having one or more inlet passages and outlet passages for the mot-ive fluid for said rotor, extending in juxtaposition to each of said series.

9. In a rotary engine, the combination with a rotor having a plurality of peripherally arranged pockets therein, of buckets in said pockets, and a casing for said rotor, said casing having one or more gradually expanding inlet nozzles terminating in enlarged pockets, whereby the motive fluid may expand and react on said buckets.

l0. In a rotary engine, the combination with a rotor having a series of pockets peripherally arranged in said rotor of a plurality of buckets disposed in each of said pockets, said rotor having auxiliary pockets of minor magnitude interposed between said first-mentioned pockets, and a casing for said rotor having a motive iiuid inlet and a motive fluid outlet.

11. In' a rotary engine, the combination With a rotor having peripherally arranged series of pockets, each alternate series extending in an opposite direction from the juxtaposed series, of a plurality of buckets in each of said pocket-s, and a casing for said rotor having a motive fluid inlet and a motive fluid outlet.

In testimony whereof I have signed my name to this specification in the presence of tvvo subscribing Witnesses.

RICHARD LUNDQUIST.

Witnesses:

EUGNE InLsnN, J. PALLAS. 

